I either hit the motherlode or it's too good to be true, but here's a list of 30 used Vehicross transfer cases. There's some pretty low mileage ones too. I think this is the place Deermagnet posted a while back.
I can start calling them tomorrow to see if they really have them and how they handle shipping.
Of course we gotta confirm if the U.S. spec fits your JDM first.
http://www.mypartshop.com/EOL_PublicSearchResults.aspx